Table 3. Comprehensive Classification of Hepatopulmonary Syndrome Based on the Specific Radiological Findings and Patterns.

Divided into two types of patterns, this classification also provides a quantitative perspective on the prevalence of the common radiological findings [27,56].

Radiological Patterns of Hepatopulmonary Syndrome		Radiologic Description		Proportion of Total Cases
Type 1		• Distal vascular dilatation accompanied by subpleural telangiectasia. • Its distinctive features encompass numerous subpleural vessels, slightly dilated, exhibiting atypical tapering, and extending to the pleural surface.		86%
Type 2		• Identified as discrete arteriovenous malformations in angiographic images and the presence of nodular dilatation in peripheral pulmonary vessels.		14%